Recalibration of temporal order perception by exposure to audio-visual asynchrony. Vroomen, J., Keetels, M., de Gelder, B., & Bertelson, P. Brain Res Cogn Brain Res, 22(1):32-5, 2004. doi abstract bibtex The perception of simultaneity between auditory and visual information is of crucial importance for maintaining a coordinated representation of a multisensory event. Here we show that the perceptual system is able to adaptively recalibrate itself to audio-visual temporal asynchronies. Participants were exposed to a train of sounds and light flashes with a constant time lag ranging from -200 (sound first) to +200 ms (light first). Following this exposure, a temporal order judgement (TOJ) task was performed in which a sound and light were presented with a stimulus onset asynchrony (SOA) chosen from 11 values between -240 and +240 ms. Participants either judged whether the sound or the light was presented first, or whether the sound and light were presented simultaneously or successively. The point of subjective simultaneity (PSS) was, in both cases, shifted in the direction of the exposure lag, indicative of recalibration.
@Article{Vroomen2004,
author = {Jean Vroomen and Mirjam Keetels and Beatrice de Gelder and Paul Bertelson},
journal = {Brain Res Cogn Brain Res},
title = {Recalibration of temporal order perception by exposure to audio-visual asynchrony.},
year = {2004},
number = {1},
pages = {32-5},
volume = {22},
abstract = {The perception of simultaneity between auditory and visual information
is of crucial importance for maintaining a coordinated representation
of a multisensory event. Here we show that the perceptual system
is able to adaptively recalibrate itself to audio-visual temporal
asynchronies. Participants were exposed to a train of sounds and
light flashes with a constant time lag ranging from -200 (sound first)
to +200 ms (light first). Following this exposure, a temporal order
judgement (TOJ) task was performed in which a sound and light were
presented with a stimulus onset asynchrony (SOA) chosen from 11 values
between -240 and +240 ms. Participants either judged whether the
sound or the light was presented first, or whether the sound and
light were presented simultaneously or successively. The point of
subjective simultaneity (PSS) was, in both cases, shifted in the
direction of the exposure lag, indicative of recalibration.},
doi = {10.1016/j.cogbrainres.2004.07.003},
keywords = {Acoustic Stimulation, Analysis of Variance, Auditory Perception, Comparative Study, Humans, Judgment, Photic Stimulation, Reaction Time, Time Factors, Time Perception, Visual Perception, 15561498},
}
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